Home / 57,212,729.39-78,952,636.41-31,107,904.61

Finding the Fourth Proportional to 57,212,729.39, 78,952,636.41 and 31,107,904.61

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Solution

The fourth proportional to 57,212,729.39, 78,952,636.41 and 31,107,904.61 is: 42,928,402.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,212,729.39 : 78,952,636.41 = 31,107,904.61 : x
  2. Step 2: Convert to fraction form
    57,212,729.39/78,952,636.41 = 31,107,904.61/x
  3. Step 3: Cross multiply
    57,212,729.39x = 78,952,636.41 × 31,107,904.61
  4. Step 4: Simplify right side
    57,212,729.39x = 2,456,051,081,638,875
  5. Step 5: Solve for x
    x = 2,456,051,081,638,875/57,212,729.39
  6. Step 6: Final answer
    x = 42,928,402.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.